File:Esem copy-01.svg
Jump to navigation
Jump to search
Size of this PNG preview of this SVG file: 552 × 355 pixels. Other resolutions: 320 × 206 pixels | 640 × 412 pixels | 1,024 × 659 pixels | 1,280 × 823 pixels | 2,560 × 1,646 pixels.
Original file (SVG file, nominally 552 × 355 pixels, file size: 9 KB)
Captions
Captions
Add a one-line explanation of what this file represents
Summary
[edit]
| Description |
English: Principle of operation of environmental scanning electron microscopy (ESEM). A sample, for example, consisting of nanoparticles is placed in a vacuum chamber containing a background pressure of vapor. The sample support stage may be cooled to attain the desired vapor pressure, for example, to 4°C for 813 Pa water vapor. It is then possible to maintain a liquid layer in the vacuum. The electron optics in high vacuum is separated from the sample chamber by a pump limiting aperture. Detection of backscattered or secondary electrons is optimal when applying a positive electrical potential V between the sample and the detector, so that a cascade of electrons and ions is created. |
| Date | |
| Source | Own work |
| Author | Nielsdejonge1 |
Licensing
[edit]
I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:41, 14 August 2017 | | 552 × 355 (9 KB) | Nielsdejonge1 (talk | contribs) | Cross-wiki upload from en.wikipedia.org |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
